scholarly journals A Significant Association of Upper Limb Muscle Strength with Thyroid Function in Overweight and Obese Population: A Study of the Sixth Korea National Health and Nutrition Examination Survey (KNHANES 2014-2015)

2020 ◽  
Vol 2020 ◽  
pp. 1-8
Author(s):  
Jeongmin Lee ◽  
Kwanhoon Jo ◽  
Jeonghoon Ha ◽  
Dong-Jun Lim ◽  
Jung Min Lee ◽  
...  
Keyword(s):  
Muscle Strength ◽  
Thyroid Function ◽  
Upper Limb ◽  
National Health ◽  
Nutrition Examination Survey ◽  
Limb Muscle ◽  
Cerebral Disease ◽  
Representative Data ◽  
Health And Nutrition ◽  
Obese Population

Background. As skeletal muscle is one of main targets of thyroid hormone signalling, an association of thyroid function and muscle strength could be expected. The aim of study is to evaluate the association of free thyroxine (FT4) and thyrotropin (TSH) with upper limb muscle strength, measured by hand grip strength, in subjects with normal FT4 from national representative data. The study utilized the sixth edition of the Korea National Health and Nutrition Examination Survey. After exclusion of subjects with FT4 level out of normal range, a history of thyroid disease or cerebral disease, restricted activity, and incomplete data, a total of 3503 were recruited (age range 19–80 years, 51% male). FT4 positively correlated with upper limb muscle strength (β coefficient = −12.84, p < 0.001 ), while TSH did negatively (β coefficient = −0.37, p = 0.002 ). After adjusting for confounding factors, statistical significance disappeared. However, among subjects with BMI above 23 kg/m2, a negative correlation of TSH with upper limb muscle strength was found in a younger age group (19–39 years old) (β coefficient = −0.56, p = 0.021 ), while FT4 positively correlated with upper limb muscle strength (β coefficient = 3.24, p = 0.019 ) in an older group (above 40 years old). In overweight and obese subjects, a significant association of thyroid function with upper limb muscle strength was observed in nation-wide representative data. High TSH in a younger group and low FT4 in an older group could be risk factors for decreased upper limb muscle strength in obese population.

scholarly journals Complementary and Integrative Health Approaches for Weight Management in the Obese Population: The 2018 Korea National Health and Nutrition Examination Survey

2021 ◽  
Vol 18 (15) ◽  
pp. 8161
Author(s):  
Sang-Dol Kim
Keyword(s):  
Food Intake ◽  
Weight Management ◽  
National Health ◽  
Age Group ◽  
Nutrition Examination Survey ◽  
Obesity Management ◽  
Health And Nutrition ◽  
Obese Population ◽  
Nationally Representative ◽  
Management Approaches

(1) Background: Obesity management has become an important issue due to the COVID-19 outbreak; therefore, periodic surveys on the approaches to obesity management of the entire population and target obese population are required. (2) Methods: The study used nationally representative data from the 2018 Korea National Health and Nutrition Examination Survey. Participants reported all approaches they had used to reduce or maintain weight in the past year. Data were analyzed with multiple response methods. (3) Results: The most commonly reported approach was exercise, which included fitness, yoga, biking, and other physical activities (74.7% of respondents), and the second most commonly reported approach was decreased food intake (69.6% of respondents). The use of approaches differed according to respondents’ demographic characteristics. Regarding sex-related differences, in particular, men preferred to exercise, while women were more likely to decrease food intake. Among men, exercise was highest in the 40–49 years age group (48.3%). Among women, decreased food intake was highest in the same age group (16.1%). (4) Conclusions: These findings indicate that it is necessary to introduce individualized weight management approaches and measures according to target groups in obese adults.

scholarly journals Folic Acid Is Related to Muscle Strength and Vitamin A Is Related to Health-Related Quality of Life: Results of the Korea National Health and Nutrition Examination Survey (KNHANES VII 2016–2018)

Nutrients ◽  
2021 ◽  
Vol 13 (10) ◽  
pp. 3618
Author(s):  
Mee-Ri Lee ◽  
Sung Min Jung
Keyword(s):  
Quality Of Life ◽  
Folic Acid ◽  
Muscle Strength ◽  
Vitamin A ◽  
National Health ◽  
Handgrip Strength ◽  
The Elderly ◽  
Nutrition Examination Survey ◽  
Health And Nutrition

This study investigated how folic acid affects muscle strength and the effects of vitamin A on quality of life in adults. Baseline data from the Korea National Health and Nutrition Examination Survey (KNHANES VII 2016–2018) was used to find 6112 adults (ages 19–80) meeting study criteria. The participants were divided into three groups: young adults (ages 19–39), middle-aged (ages 40–64), and elderly (≥65 years). Muscle strength was measured using a digital grip strength dynamometer. The EuroQol five-dimension questionnaire measured quality of life. Associations were assessed using multivariate regression and logistic regression. Vitamins and handgrip strength were divided into low and high groups based on the mean. Although vitamin A and folate levels were related to handgrip strength in all subjects, regression demonstrated a significant association between folate and handgrip strength in the elderly. The odds ratios (OR) of higher handgrip strength were statistically significant for elderly participants with high levels of folate compared to those with low levels (OR: 1.55). Vitamin A was associated with quality of life, especially in the self-care dimension for the elderly. Further longitudinal research is needed to examine the relationship between vitamins and muscle strength, as well as vitamins and quality of life.

scholarly journals The Impact of Smoking on the Association between Perfluoroalkyl Acids (PFAS) and Thyroid Hormones: A National Health and Nutrition Examination Survey Analysis

Toxics ◽  
2020 ◽  
Vol 8 (4) ◽  
pp. 116
Author(s):  
Maaike van Gerwen ◽  
Naomi Alpert ◽  
Mathilda Alsen ◽  
Kimia Ziadkhanpour ◽  
Emanuela Taioli ◽  
...  
Keyword(s):  
Thyroid Function ◽  
National Health ◽  
Smoking Status ◽  
Positive Association ◽  
Perfluoroalkyl Acids ◽  
Nutrition Examination Survey ◽  
Survey Analysis ◽  
Significant Positive Association ◽  
Health And Nutrition ◽  
The Impact

Perfluoroalkyl acids (PFAS) are known endocrine disrupting chemicals, potentially affecting thyroid function. Smoking has been associated with PFAS levels as well as with thyroid function. The impact of smoking on the association between PFAS and thyroid function remains to be elucidated, so the objective was to assess the effect of PFAS exposure on thyroid function in the general population, stratified by smoking status, using the National Health and Nutrition Examination Survey (NHANES). NHANES adult participants who were part of the 2011–2012 laboratory subsample and had PFAS and thyroid function measured were included (n = 1325). Adjusted linear regression models and stratified analyses were performed. There was a significant positive association between perfluorooctanesulfonic acid (PFOS) (p = 0.003), perfluorononanoic acid (PFNA) (p = 0.014), total PFAS (p = 0.004) concentrations and free T4 (FT4). No significant associations were found between perfluorooctanoic acid (PFOA), PFOS, perfluorohexane sulfonate (PFHxS), PFNA, total PFAS and total T4 (TT4) or thyroid stimulating hormone (TSH). In non-smokers, a significant positive association was found between PFOS (p = 0.003), PFHxS (p = 0.034), PFNA (p = 0.012), total PFAS (p = 0.003) and FT4 while no significant associations were found in smokers. The present study showed that increased PFAS exposure was associated with increased FT4 in non-smokers, while no association was found in smokers. These results confirm that smoking modifies the association between PFAS exposure and thyroid function.

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